I have a following problem that I can't find a solution for.
I have the following setup
Private LAN -> Mikrotik router <-> ip2lt vpn on linux <-> clients
The idea is to allow clients to remotely access private LAN network that is connected to Mikrotik router. I have been able to configure the vpn so that the clients see each other and the Mikrotik router, but I can't figure out how to connect private LAN network that is connected to the Mikrotik with other VPN clients.
Let's assume that clients and the router are connected together into one network 192.168.42.0/24 via VPN.
Mikrotik has 192.168.42.10 Client 1 has 192.168.42.11
Client 1 pings 192.168.42.10 --> works well.
Now, Mikrotik has a private network connected with the addresses 192.168.88.0/24
I want to be able to connect to 192.168.88.254 from Client 1.
1) How do I do this? I figured that VPN needs to forward the ip packets addressed to 192.168.88.0/24 to the Mikrotik router cause right now they don't reach Mikrotik. How to achieve this on linux? Iptables FORWARD or adding a
2) Let's say I have a default gateway on the client's computer 192.168.1.1 (NAT for internet access), when I traceroute to 192.168.88.254 I see it goes through the default gateway. I want it to go through VPN server instead. How to properly address this? I added a local routing rule on my Mac but this solution (to modify client in order for it to work) doesn't seem to be right.
4) Do I have to configure something in Mikrotik router? In my opinion no because it will know the gateway for 192.168.42.0/24 addresses, right?
5) What is the best way/practice to achieve the desired outcome?